Guo Shoujing Wangyuan Mirror helps global astronomers reveal the mystery of the Milky Way

Xinhua News Agency, Beijing, September 23 (Reporter Yu Fei and Zhou Zhou) The National Observatory of the Chinese Academy of Sciences recently revealed that the international influence of Guo Shoujing telescope has continued to increase, which has contributed to human understanding of the Galaxy.

Zhao Yongong, executive deputy director of the Operation and Development Center of Guo Shoujing Telescope, introduced that the 11 -year -old Guo Shoujing telescope released a total of about 20 million spectrum data, about twice the sum of spectral data for all other optical sky patrol projects in the world.

Utilizing these data, global astronomers have achieved a large number of influential scientific research results in the fields of research, star physics and special celestial search. Among them, 48.3%of scientific papers published by giants from foreign scholars from foreign countries.

This is Guo Shoujing telescope (left) (taken on July 15, 2016). Xinhua News Agency reporter Li Xiang

Guo Shoujing telescope, located in the main peak of Yanshan, Xinglonglong, Hebei, also known as the Datian District area of ​​multi -target fiber optic spectrum astronomical telescope (Lamost). It is an active reflected Schmids telescope developed by China's independent innovation. It breaks through the bottleneck that is difficult to get in the large -caliber of the telescope and the big field of view. It is the largest large -looking telescope in the world, which has opened up a new way to set the spectral patrol with thousands of optical fiber.

"If the telescope we usually use, we can't see it widely, but Lamost can be seen far and wide. It is like a large net that is fishing in the deep sea. Many fish. "Zhao Yongong said, especially in searching for special celestial bodies, Lamost has made great contributions to world astronomy research.

The staff carried out summer maintenance of Guo Shoujing telescope MA sub -mirror (taken on July 14, 2016). Xinhua News Agency reporter Li Xiang

According to reports, multiple grounds and space telescope projects in the United States, Europe, and Japan have cooperated with Lamost to produce a series of original scientific research results.

The American Sloan Sky Touring Project signed a cooperation agreement with Lamost in 2002. In 2021, the Slong project learned from Lamost optical fiber positioning experience and replaced the way of inserting fiber into a robot -style automatic fiber positioning technology.

Professor Fu Jianning of Beijing Normal University is the initiator of Lamost and the Cairple Space Telescope Cooperation Project. He introduced that the American Capeler Telescope has achieved excellent achievements in the field of foreign planet's search, but due to lack of spectral observation information and star parameters, scientists cannot conduct in -depth research on these newly discovered stars with stars with outer planets.

In 2012, Lamost and the Cairple telescope signing a cooperation agreement to conduct high -quality spectral observations of more than 100,000 stars in the target sky, and measured the basic parameters of the vast majority of stars, thus conducting "physical examination construction construction construction "File" and obtained a series of scientific research results.

National Observatory researcher Zhao Gang led Lamost's cooperation project with Subaru telescope in Japan. The project team screened more than 10,000 poverty -stricken star candidates in the Lamost spectrum. With the help of the Subaru telescope, more than 400 poverty -stricken stars carried out high -resolution observation and meticulous abundance analysis, forming the world's largest and most uniform poverty in the world Metal star height resolution spectrum sample.

Zhao Yongong said that in 2013, the new generation of celestial measurement satellite Gaia, the European Space Bureau of Shengkong, released the accurate location of more than 1 billion stars throughout the day, and Lamost is the ground -to -sky telescope that releases the most spectrum data, which can provide high -precision with high precision Star atmosphere parameters.

A research team composed of scholars from Columbia University and the University of Sydney, Australia stated in its academic articles that Lamost Sky Catrolling covers most of the heavenly areas of Gaia observation and provides an unprecedented perspective for the research of the galaxy chemistry.

Lamost also helped researchers at the Strasbourg Observatory in France discovered the relic of spherical star group with the lowest metal content in the universe.

In addition, astronomers used Lamost and Gaia Skytop data to obtain the age information of the most accurate large sample stars so far, and to clearly restore the formal evolutionary images of the Galaxy's young and adolescents according to the time sequence, rewriting the early formation of humans to the early formation of the galaxy. History understanding.

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